If you’ve spent time on the Battery University website, you’ve likely read the ‘BU-808: How to Prolong Lithium-based Batteries’ article. So, you’ll know that the Li-ion battery cells in your iPhone and Apple Watch do not love to be charged all the way up to 100% full, nor run down much below 20-30%. So, how about an App that alerts you via a Notification, when your device’s battery is charged past 90%, or has run down below 25% (or, whatever pre-set charge levels you prefer)? So that you don’t need to worry about remembering to check on charge levels throughout the day? And so that you can get an idea of your iPhone’s current battery-level with a glance at your Apple Watch? ‘Juice Watch’ is that App. (Now, it’s not perfect; iOS and WatchOS will only update the App every so often, so notifications can sometimes come in a little later than might be ideal. Of course, the App can only work with the updates that the OS provides it with. But, if you want to extend the life of your device batteries through good battery-care practices, this App is a great tool for it. It’s easy to set-up, and does what it says it’ll do. Getting an extra year or two’s service out of a battery makes it a good value proposition, in my opinion. Give it a try!)